Oppermann, N., Junklewitz, H., Robbers, G., Bell, M. R., Enßlin, T. A., Bonafede, A., et al. (2012). An improved map of the galactic Faraday sky. Astronomy & Astrophysics, 542: A93, pp. 1-14. doi:10.1051/0004-6361/201118526.